Sticky fly-paper



(No Model.)

J. H. SMITH. STICKY FLY PAPER.

No. 476,087. PatentedMay 81, 1892.

in: ion]! PEI!!! cm vhcrfo umg Msmnswu o c UNITED STATES PATENT OFFI E.

JAY I-IUNGERFORD SMITH, OF ROCHESTER, NEW YORK.

STICKY FLY- PAPER.

SPECIFICATION forming part of Letters Patent No. 476,087, dated May 31,1892.

Apnlication filed January 23, 1892. fierial No. 419,065. (No model.)

To all whom it may concern.-

Be it known that I, JAY HUNGERFORD SMITH, a citizen of the UnitedStates, residing at Rochester, in the county of Monroe and State of NewYork, have invented new and useful Improvements in Fly Paper, of whichthe following is a specification.

This invention relates to the article of trade known as stickyfly-paper, in which a sheet of paper is partly or wholly covered on oneside with a suitable soft and sticky substance for catching flies,moths, and various insects.

Ileretofore in the manufacture and preparation of sticky fiy-paper forpacking and transportion each sheethas been doubled over or foldedthrough its center, so that the sticky face will be on the inside, andthereby protected to some extent from atmospheric infiuences andshielded from contact with extraneous matters and objects until thepaper is unfolded and opened out for use as a means forentrappinginsects. When exposed, however, to the action of heat ormoisture, and especially in warm damp weather, the sticky fly-catchingmaterial is liable to spread beyond the edges of the paper, so that allor most of the sheets in the box or package will become sticky on theirouter sides, thus rendering the paper unpleasant and difficult tohandle, and consequently worthless as a merchantable article. It hasbeen sought to remedy these difficulties by various expedients in themanufacture of the sticky fly-paper and in the modes of packing it fortransportation. To prevent penetration of the paper background by thesticky mixture applied to one side, a parchment paper impervious to suchmixture has been employed. For a similar purpose, also, the sheet ofpaper has .been sometimes prepared with a coatof sizing on the side uponwhich the sticky fiy-catching mixture is spread to prevent it fromsoaking through the paper. In order to facilitate handling of the paper,and to some extent confine the sticky material within its proper field,so as to prevent or obstruct its spreading to or beyond the edge of thepaper, aclear or uncoated margin is in some instances left around theentire sheet, and within this margin is sometimes arranged a layer orstrip of some resinous or moderately adhesive comstance with a raisedborder of some such material as strawboard, thickpaper, fiber, sawdust,sand, or the like to form a spacing me dium between the sticky faces oftwo contiguous sheets and a guard to retain the sticky compound inplace.

My invention consists in a sheet of sticky fly-paper in which the fieldof soft sticky substance is intersected by bars or strips of moreadhesive material than that composing the field, whereby the efficiencyof the sticky paper as a fiy-catching device is increased and anytendency to sagging of the field is more perfectly prevented.

In the annexed drawings, illustrating the invention, Figure l is asectional elevation of a form of apparatus adapted for use in applyingthe field of sticky substance and the border and cross-bars of moreadhesive material to astrip or sheet of paper. Fig. 2 is a view of aportion of a strip of paper after it has been partially prepared,showing a longitudinally central line of perforations, with a plainsurface of sticky fiy-catching material on one side of the central lineand a border and crossbars of more adhesive material on the other side,which at this time has no fiy-catching material thereon. Fig. 3 is across-section of a sheet of fly-paper cut from said strip and foldedalong the central line of perforations in readiness for packing,transportation, and sale, and whereby the folding of the sheet causes aportion of the sticky or adhesive material on each side of the line offold to be partially transferred to the other side or portion. Fig. 4 isa view of a sheet of my improved sticky fiy-paper opened out or unfoldedin readinessfor use.

Referring to the drawings, the numeral 1 designates a sheet of stickyfly-paper prepared according to my invention, the field of soft andsticky fiy-catching substance being represented at 2, while 3 designatesa border of more adhesive material than that used for covering thefield. By means of the border 3, surrounding the softfiy-catchingcompouud or mixture 2 on all sides and composed of amaterial having more body and adhesiveness parts an increased body andthickness to the marginal portions of the prepared paper, so as to braceor sustain the sheet, prevent curling of the edges, and cause thesuperposed,

sheets in a package or box to maintain a substantially horizontalposition that will obviate i any tendency to sagging at the center,whereby the material composing the field in each sheet might besubjected to undue pressure r and thereby displaced or injuriouslyaffected. Besides surrounding the field 2 of soft sticky f fiy-catchingmaterial with a more adhesive border 3, as above described, it will beof considerable advantage to intersect the field 2 with one or more barsor strips 4, having greater adhesiveness and body and composed of thesame material as that employed to form the border.

These bars or strips 4 are 1 especially useful in sheets of large sizeto more perfectly brace and sustain the field,. obviate any tendency tosagging, and to assist in maintaining a proper parallelism of the;

superposed sheets when packed for transportation.

The bars or strips 4 of increased adangle to each other.

In each sheet of paper the field is intersected by two bars or strips 4j of greater adhesiveness disposed at right angles to each other, asshown, and extended across the field.

sticky fly-catching material 2, the surrounding-bo'rder 3 of greateradhesiveness, and the bars or strips 4 onto the paper, I may employ anapparatus comprising a tank or trough 5,

having two parallel compartments 6 and 7,; separated by a centralpartition 8, as shown in Fig. 1. In one of the tank-compartments,

as 6, will be mounted a plain-faced roller 9, immersed in a "soft stickyand semi-liquid material suitable for forming the field or main portionof the coating to be applied to the pa- The othertank-compartment 7 willhave mounted therein a roller 10, provided at each a per.

end and in the center with annular projec- 11 and 12 corresponding withthe required position of the border 3 and bars or strips 4 ofhighly-adhesive material to be formed on the paper.

stickymaterial with which the compartment 6 is supplied. The paper to betreated is fed to the rollers 9 and 10 in a continuous strip,

In the tank-compartment '7 will be; placed a composition or mixture ofgreater. adhesiveness and more body than the soft;

which is cut into suitable lengths or sheets after it leaves the coatingapparatus. The rollers 9 and 10 may be rotated by any suitable means. Onone side of a central longitudinal line dividing the paper strip theroller 9 deposits a coating of the soft sticky substance contained inthe tank 6, and which may be of any well-known character suitable forforming the field 2 of a sheet of fly-paper. At the same time theprojecting ribs 11 and 2 of the roller 10 will deposit on the strip ofpaper on the opposite side of the said central longitudinal line asufficient quantity of a more adhesive material to form the borderandbars or strips 4 in the field. After the paper strip has passed therollers 9 and 10 it will be cut into suit-able lengths and each sheet orseparated'portion of the paper strip will be folded along the centrallongitudinal line h'ereinbefore mentioned. By this folding of the sheetalong its middle a reciprocal transfer of portions of the soft stickyflycatching material 2 and the more adhesive material composing theborder 3 and bars 4 will take place, and thus the sheet of fly-paperwill be supplied on each side of a central longitudinal line with asticky field 2, surrounded by a border 3 of more adhesive material andintersected by the bars 4, which are also more adhesive than thematerial composing the field. Each of the rollers 9 and 10 will bepreferably provided at proper intervals with open spaces or depressionsof Wellknown construction, whereby at suitable intervals on thecontinuous strip of paper will be left uncoated spaces 13, through whichthe strip of paper is to be separated into sheets.

While the continuous strip of paper is being passed through the coatingapparatus a series of perforations 14 may be formed by For the purposeof applying the soft and any suitable means along its central1ongitudinal portion, asshown in Figs. 2 and 4, for the purpose offacilitating the folding of the sheets and to enable them to be morereadily divided or severed at the middle, if desired, after the foldedsheet has been opened outor unfolded for use.

The continuous coated strip of paper may be cut into suitable lengths orsheets by means of automatic cutting devices, and an automatic foldingmechanism may be employed for folding the several sheets; but it is notdeemed necessary to illustrate or describe these devices, as they formno part of i the present invention. tions or ribs 11 and havingtransverse or 1011- gitudinally-arranged ribs or projections 12;disposed at suitable intervals, the said ribsl;

The folded sheets of sticky fly-paper prepared according to myinventionwith borders of more adhesive substance than that employed in the fieldare adapted to be packed in suitable boxes or packages and transportedand stored without danger of becoming spoiled by oozing of the softsticky material at their edges, as the surrounding border of increasedadhesiveness Will so unite the edges of the paper as to form a perfectsafeguard to prevent escape of the softer inclosed material.

WVhat 1 claim as my invention is IIO Asheet of sticky fly-paper havingafield of my hand and affixed my seal in presence of soft stickyfly-catehing material intersected two subscribing witnesses. by bars orstrips of more adhesive material and surrounded by a border of materialwhich 5 is more adhesive than that composing the Witnesses:

field, substantially as described. WM. H. FARRAND, In testimony whereofI have hereunto set I WM. 0. LOWREY.

JAY HUNGERFORD SMITH. [L 5.]

